| Most Populous Countries in 1900 | 0 | - | 4.91 | 172,570 |
| Most Populous Countries by Year | 0 | - | 4.83 | 109,178 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 323,609 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,261 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.87 | 75,241 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 83,586 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 66,546 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 72,783 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 96,191 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,434,688 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 377,532 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,065 |
| Countries with Megacities | 0 | - | 4.99 | 246,651 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 196,992 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 111,849 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,418 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 79,783 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 85,796 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 265,863 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 120,845 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 111,456 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 92,561 |
| Most Populous Countries in 1950 | 0 | - | 4.63 | 85,715 |
| Countries of Europe by Population | 0 | - | 4.98 | 177,983 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.96 | 95,125 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 129,284 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 106,884 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 112,368 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 89,557 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.92 | 70,370 |
| Biggest European Cities by Century | 0 | - | 4.98 | 142,737 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 221,426 |
| Countries with the Highest Population Density | 0 | - | 4.94 | 164,087 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 169,058 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 164,580 |
| Top 10 Most Populous European Countries | 0 | - | 4.98 | 230,880 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 181,951 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 191,813 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 102,965 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 107,815 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 122,924 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 158,363 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.85 | 22,916 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 166,982 |
| Countries by Population Decrease | 0 | - | 4.45 | 49,606 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 63,840 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 56,941 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 114,770 |
| Biggest Cities in the World | 0 | - | 4.92 | 790,122 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 75,523 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.74 | 99,432 |
| Countries in the Ottoman Empire | 0 | - | 4.89 | 72,255 |
| Biggest Mongol Empire Countries | 0 | - | 4.89 | 80,651 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,093 |
| Countries Losing the Most Population by 2070 | 0 | - | 4.40 | 84,117 |
| Biggest City by Time Zone | 0 | - | 4.87 | 66,617 |
| Biggest City in Every Country | 0 | - | 4.98 | 98,619 |
| Five Most Populated Cities by Continent | 0 | - | 4.93 | 221,819 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 108,820 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.96 | 129,954 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 78,462 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 83,497 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 413,520 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 78,551 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 53,037 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 69,144 |
| Ten Southernmost Megacities | 0 | - | 4.85 | 56,723 |
| Biggest Cities in the United States | 0 | - | 4.93 | 966,284 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 363,713 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 236,203 |
| Countries That Use the Euro | 0 | - | 4.96 | 102,925 |
| Olympic Host Countries | 0 | - | 4.98 | 198,856 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 45,794 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 113,499 |
| Ten Highest Ranking FIFA Countries by Year | 0 | - | 4.94 | 303,355 |
| The Only European Country ... | 0 | - | 4.91 | 213,754 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 210,072 |
| European Countries NOT in NATO | 0 | - | 4.87 | 59,482 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,190 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 102,521 |
| Countries of Africa | 0 | - | 5.00 | 2,507,021 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 164,449 |
| Countries Bordering China Since 1914 | 0 | - | 4.93 | 94,703 |
| Biggest Cities in History | 0 | - | 4.52 | 89,109 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 72,113 |
| Biggest World Cities in 1850 | 0 | - | 4.62 | 68,187 |
| Countries of Asia in 1900 | 0 | - | 4.50 | 57,613 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,651 |
| Demographics Multiple Choice | 0 | - | 4.69 | 42,084 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 126,398 |
| Biggest Cities by Language | 0 | - | 4.96 | 230,819 |
| Largest City by Island | 0 | - | 4.87 | 71,016 |
| Most Populous World Capitals | 0 | - | 4.94 | 174,513 |
| Megacities on a World Map | 0 | - | 4.98 | 250,876 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 573,103 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 66,777 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 73,846 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 112,675 |
| Biggest City in Each U.S. State | 0 | - | 4.84 | 167,119 |
| Former Capitals | 0 | - | 4.88 | 71,130 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,319,517 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 216,264 |
| Biggest Roman Empire Countries | 0 | - | 4.87 | 101,354 |
| Countries of the Middle East | 0 | - | 4.96 | 198,861 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 88,226 |
| Slavic Countries | 0 | - | 4.96 | 110,831 |
| African Island Countries | 0 | - | 4.96 | 100,762 |
| Neutral European Countries of WWII | 0 | - | 4.91 | 160,439 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 42,488 |
| All Countries Never To Qualify For A FIFA World Cup | 0 | - | 4.84 | 44,974 |
| Countries with the Most Billionaires | 0 | - | 4.90 | 332,794 |
| Countries with the Most Millionaires | 0 | - | 4.86 | 122,043 |
| All-Time Winter Olympics Medal Table | 0 | - | 4.46 | 177,738 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,011,385 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 125,682 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 106,461 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 152,059 |
| Five Top Olympic Medal-Winning Countries by Continent | 0 | - | 4.96 | 142,759 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 215,587 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 191,684 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 152,738 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,141 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 143,146 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 150,264 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 115,545 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 160,240 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 98,379 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 107,213 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 32,491 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 73,125 |
| Biggest Cities in Asia | 0 | - | 4.95 | 115,277 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 49,558 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 341,950 |
| Megacities on an Empty Map | 0 | - | 4.96 | 102,480 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 50,281 |
| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.84 | 225,253 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.90 | 105,295 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 124,172 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 134,332 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,316 |
| Mediterranean Countries with an Empty Map | 0 | - | 4.99 | 104,350 |
| Monarchies of Europe | 0 | - | 4.90 | 97,293 |
| Monarchies of Asia | 0 | - | 4.97 | 70,589 |
| Countries with the Most Downhill Skiing | 0 | - | 4.90 | 56,815 |
| Asian Country Superlatives | 0 | - | 4.84 | 80,425 |
| Countries that Catch the Most Fish | 0 | - | 4.90 | 111,464 |
| Countries with the Most Muslims | 0 | - | 4.95 | 159,249 |
| Countries with the Most Exports | 0 | - | 4.96 | 154,134 |
| Top Crude Oil Producing Countries | 0 | - | 4.89 | 188,469 |
| Countries by Oil Consumption | 0 | - | 4.96 | 119,529 |
| Largest Economies in 2050 | 0 | - | 4.90 | 110,626 |
| Countries with the Longest Coastlines | 0 | - | 4.81 | 411,136 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 262,023 |
| Countries With Highest GDP as a Percent of Continent | 0 | - | 4.95 | 102,917 |
| Countries with the Highest GDP per Square Kilometer | 0 | - | 4.90 | 83,692 |
| "Stan" Countries - Map Quiz | 0 | - | 4.98 | 133,718 |
| Countries that Start with A | 0 | - | 4.97 | 2,146,309 |
| Countries that Start with B | 0 | - | 4.95 | 2,279,425 |
| Countries that Start with C | 0 | - | 4.96 | 1,809,947 |
| Countries that Start with D | 0 | - | 4.96 | 701,290 |
| Countries that Start with E | 0 | - | 4.95 | 1,367,237 |
| Countries that Start with G | 0 | - | 4.97 | 1,492,477 |
| Countries that Start with H | 0 | - | 4.96 | 597,746 |
| Countries that Start with I | 0 | - | 4.92 | 1,280,055 |
| Countries that Start with J | 0 | - | 4.98 | 595,823 |
| Countries that Start with K | 0 | - | 4.97 | 809,229 |
| Countries that Start with L | 0 | - | 4.98 | 1,082,656 |
| Countries that Start with N | 0 | - | 4.93 | 1,109,521 |
| Countries that Start with P | 0 | - | 4.94 | 1,208,340 |
| Countries that Start with S | 0 | - | 4.98 | 1,744,210 |
| Countries that Start with T | 0 | - | 4.90 | 1,004,045 |
| Countries that Start with U | 0 | - | 4.97 | 899,801 |
| Countries that Start with V | 0 | - | 4.98 | 604,969 |
| Countries that Start with F | 0 | - | 4.83 | 612,029 |
| Countries that Start with M | 0 | - | 4.97 | 1,373,085 |
| The Only African Country ... | 0 | - | 4.99 | 128,341 |
| The Only American Country ... | 0 | - | 4.92 | 120,732 |
| African Countries by a Single Clue | 0 | - | 4.92 | 67,771 |
| African Diaspora - Top 10 Countries | 0 | - | 4.92 | 72,239 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 95,026 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 136,343 |
| 10 Asian Countries with the Most Tourists | 0 | - | 4.89 | 105,005 |
| European Countries with One Border | 0 | - | 4.97 | 181,587 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 178,497 |
| Countries Closest to Africa | 0 | - | 4.96 | 156,077 |
| Most Populous Islands | 0 | - | 4.79 | 121,965 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,198 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,401 |
| Countries of the Japanese Empire | 0 | - | 4.97 | 103,851 |
| Countries of the Soviet Union | 0 | - | 4.98 | 193,801 |
| Biggest British Empire Countries | 0 | - | 4.73 | 90,104 |
| Biggest French Empire Countries | 0 | - | 4.49 | 64,868 |
| Modern-Day Countries of the Roman Empire on a Map | 0 | - | 4.99 | 124,688 |
| Countries of Europe After World War II | 0 | - | 4.99 | 186,682 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 155,319 |
| Countries That Border Russia | 0 | - | 4.98 | 458,840 |
| Countries Bordering France | 0 | - | 4.83 | 398,740 |
| Countries Bordering Germany | 0 | - | 4.99 | 366,974 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,525 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,108 |
